baber/WOPTO huggingface dataset:
Patent GB-1009842-A (GB)
Title: Method and apparatus for producing sheets of foamed plastics material
IPC: B29C48/355
Filed: 1961-10-19
Abstract: <PICT:1009842/C3/1> A method of producing a sheet of foamed plastics material composed of a multitude of closed cells, in which the cells towards one surface of the sheet are smaller than those towards the other surface, comprises extruding fluid-foamed thermoplastics material through a circular die orifice to form a tube, rapidly cooling the inner surface of the tube adjacent the orifice by impinging a jet of gas at a temperature substantially lower than that of the plastics material against an annular zone of the inner wall of the tube as it issues from the orifice and before full expansion of the cells and thereafter slitting the tube longitudinally to form a sheet.  The treated surface has a lower coefficient of friction than the opposite surface.  In one embodiment, foamable polystyrene beads are transferred by screw 12 through the barrel 11 of the screw extruder, heated to a temperature at which the beads melt and which is above the atmospheric boiling-point of the expanding agent.  The melt is forced through extrusion channel 19 and, in leaving orifice 20, with simultaneous formation of closed cells due to the volatilization of the blowing agent, forms an annulus which passes over cylindrical mandrel 21 to form closed tube 23.  Gas, especially air, is fed through pipe 24, channels 26 and 27 and through a radial passage 32 between plate 30 and flange 28, emerging through the peripheral slot 33.  The gas is directed on to the inner surface of the film 23 while the plastic is still in a heated deformable state and before full expansion of the cells has occurred.  The tube is slit by cutter wheel 35 and the slit tube is opened out to form a sheet.  The gas from slot 33 produces a pressure which expands and supports the hot deformable tube and provides a cushioning film between the tube and the mandrel.  The material is useful in the production of nested, tapered cups.
Patent GB-1177544-A (GB)
Title: An Electric Circuit Interrupter.
IPC: H02B11/26
Filed: 1967-04-07
Abstract: 1,177,544. High current switches. S. & C. ELECTRIC Co. 7 April, 1967, No. 37677/68. Divided out of 1,177,543. Heading H1N. The circuit interrupter described and claimed is that used in the switchgear structure of the main patent Specification and is shown in Fig. 7 of that specification.
Patent GB-344884-A (GB)
Title: Process for dyeing or colouring cellulose ethers and cellulose esters and materials containing cellulose ethers or cellulose esters
IPC: D06P3/34
Filed: 1929-12-09
Abstract: Cellulose ether or ester varnishes are coloured yellow by incorporating in them a dye obtained by coupling with p-cresol a diazo compound of the benzene series which contains an alkoxyl group in p-position to the diazo group.  In an example the dye 4<1>-methoxy-2-oxy-5-methylazobenzene gives when dissolved in a finished nitrocellulose varnish a yellow varnish; by incorporating suitable additions a matt or covering varnish may be obtained. Reference has been directed by the Comptroller to Specification 269,934, [Class 2 (iii), Dyes &c.].ALSO:Cellulose ethers or esters or materials containing them or cellulose ether or ester varnishes are dyed or coloured yellow or greenish-yellow tints by dyestuffs obtainable by coupling with p-cresol a diazo compound of the benzene series which contains an alkoxyl group in p-position to the diazo group.  In examples (1) the dye 41-methoxy-2-oxy-5-methylazobenzene is dissolved in a finished nitrocellulose varnish; by incorporating suitable substances a mat or covering varnish may be produced; (2) the dye named in the first example is mixed with a suitable dispersing agent such as sulphite cellulose liquor or a sulphonation product of the residue of benzaldehyde manufacture and with water and a soap solution and acetate silk is dyed therein green-yellow.  The dye 41-ethoxy-2-oxy-5-methylazobenzene may be similarly used. Specifications 263,579, 269,934, and 271,898, [all in Class 2 (iii), Dyes &c.], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes the manufacture of the dye obtained by coupling in alkaline solution diazotized p-anisidine with p-cresol. Turkey-red oil is also specified as a dispersing agent for the dyes.  This subject-matter does not appear in the Specification as accepted.  Reference has been directed by the Comptroller to Specification 269,934, [Class 2 (iii), Dyes &c.].
Patent GB-1526038-A (GB)
Title: 5-thiazole methane amine derivatives and salts thereof processes for preparing them and pharmaceutical compositions containing them
IPC: C07D277/28
Filed: 1976-09-13
Abstract: 1526038 Thiazole derivatives ROUSSELUCLAF 13 Sept 1976 [12 Sept 1975 31 March 1976] 37770/76 Heading C2C  Novel compounds of Formula I (in which R<SP>1</SP> represents an alkyl radical containing from 1 to 6 carbon atoms, and R<SP>2</SP> and R<SP>3</SP>, which may be the same or different, each represents a hydrogen atom, an alkyl group containing from 1 to 6 carbon atoms, or a hydroxyl-substituted alkyl group containing from 1 to 6 carbon atoms, or alternatively R<SP>2</SP> and R<SP>3</SP> with the nitrogen atom to which they are bonded together form a saturated heterocycle containing 1 or 2 nitrogen atoms and which moreover optionally bears an alkyl substituent containing from 1 to 4 carbon atoms) and acid addition salts thereof are prepared from compounds of Formula II  wherein X is Br or Cl by standard methods. Starting materials of Formula II above and intermediates are also prepared. Pharmaceutical compositions in conventional forms and having antilipoic and antiglycaemic activity comprise an above novel compound and a carrier or diluent.
Patent GB-888738-A (GB)
Title: Improvements in or relating to razors
IPC: B26B21/52
Filed: 1958-11-24
Abstract: 888,738. Razors. OSBERGHANS, H. [trading as OSBERGHANS RUD. [firm of]]. Nov. 24, 1958 [May 17, 1958], No. 37779/58. Class 30 A safety razor blade is clamped between a blade seat 2 and a clamping plate 3 by the engagement of a U spring 5, 6, mounted on the plate, with the undercut head 10 of a resilient tongue 11 secured inside the handle 1. The stem 17 of a spring-controlled press button moves the head 10 laterally out of engagement with the spring 5, 6 which is raised by the resilient closure of the ends 18, 19 on the stem 17. Upward movement of the spring 5, 6 and the clamping plate is arrested, in a position in which the blade can be rinsed, by the engagement of curved parts 14, 15 of the spring in recesses 12, 13. The spring is pulled out of the handle to separate the clamping plate and blade seat for blade replacement.
Patent GB-849452-A (GB)
Title: Siren
IPC: G10K7/00
Filed: 1956-12-12
Abstract: 849,452. Sirens. BLANCHARD, J. M. Dec. 12, 1956 [Dec. 16, 1955], No. 37945/56. Class 13. In a rotary siren packing is provided in the space, or spaces, between the rotor and the part, or parts, co-operating therewith for preventing leakage of fluid thereinto. As shown in Fig. 6 the rotor 2e has recesses 35 at its periphery within which are apertured weights 34 provided with fluid tight rings 36. When the rotor is driven the weights 34 are urged against the ring 33 secured to the stator, which ring has parts 31a, 31b therin, the rounded heads 37 of the weights 34 providing for fluid tightness and preventing any substantial leakage of fluid into the space 38. In the embodiment of Fig. 8 the rotor is a disc 2J having perforations on a circle coaxial with its rotary axis 3J and the stator consists of two solid flanges 86, 87. Fluid fed under pressure into pipe 89 enters an annular channel 90 from which auxiliary channels 91a, 91b feed nozzle-shaped injectors 92a, 92b distributed uniformly round the axis 3J at a radius equal to that of the circle on which the perforations in the rotor lie. The flange 87 has corresponding ejector nozzles 93a, 93b connected via radial channels 94a, 94b with the bell-shaped member 101. The adjustable pistons 96a, 96b, 97a, 97b allow the injector and ejector nozzle chambers to be tuned to the frequency produced by the siren. Fluid tight packings 100 are fitted between the rotor 2J and each of the flanges 86 and 87. The packings are preferably of polytetrafluoroethylene which may be operated at temperatures up to 300‹ C. In other embodiments there is no stator, but contra-rotating rotors are provided.
Patent GB-304188-A (GB)
IPC: F16C3/28
Filed: 1928-12-27
Abstract: 304,188. Kowarick, F. Jan. 16, 1928, [Convention date]. Eccentrics. - Separate admission and exhaust valves v arranged at the end of a steam-engine cylinder are operated by cams u reciprocated in oil baths by eccentrics mounted in oil baths and carried by tooth-driven shafts w. Each eccentric is composed of an inner eccentric section e mounted on the shaft w and an outer eccentric section E embracing the inner section. The outer section E is embraced by a strap D. The sections are angularly adjustable in opposite directions to secure an adjustable admission with increasing or decreasing or constant lead. The section e, Fig. 2, has a boss p with a helical slot s, and the section E has lateral projections carrying pins o which engage cam slots in a disc m. The latter has bosses f, r with projections engaging respectively the slot s, and a helical slot g in a longitudinally-movable collar d on the shaft of different pitch to the slot s. When the collar d is moved longitudinally, the helical slots g, s through the sleeve m and pins o cause the two parts of the eccentric to move to effect the desired change in the valve-motion. The Specification as open to inspection under Sect. 91 (3) (a) comprises also geometrical constructions for determining the dimensions of the gear. This subject-matter does not appear in the Specification as accepted.
Patent GB-348668-A (GB)
Title: Improved articles made of steel alloys and requiring high permanent strength, such as containers, pipes, boiler parts and the like
IPC: C22C38/00
Filed: 1929-12-14
Abstract: Articles which are to be subjected in use to high temperatures and pressures, such as containers, pipes, boiler parts, &c., are made from steel alloys free from aluminium, copper, and nickel, and containing less than 0,2 per cent of carbon, up to 0,8 per cent of molybdenum, and one or more of the following elements: chromium, tungsten, vanadium, silicon, and titanium.  The articles are subjected to a heat-treatment consisting in quenching and annealing. Specifications 17519/07, [Class 82, Metals and alloys], 13504/10, 15173/10, 19458/11, 133,069, 150,343, 200,952, 285,051, and 290,487, [all in Class 82 (i), Metals, Extracting &c.], are referred to.
Patent GB-1086356-A (GB)
Title: Improvements in or relating to stacking me chanisms
IPC: B65H29/46
Filed: 1964-09-21
Abstract: 1,086,356. Making containers. CANTOP Inc. Sept. 21, 1964 [Sept. 19, 1963], No. 38448/64. Heading B5D. [Also in Division B6] Plate-like articles, e.g. the can end members formed by the machine described in Specification 1,030,407, are stacked in two stacks, within cages formed by rods 21, by means of reciprocating plates 20 carried on pistons 17, pivoted levers 22 having hooked lower ends and being constrained by springs 24 to retain the lowermost article in each stack. The pistons are fixed to a cross-member 16 having rollers 18 which run in eccentric grooves 12 of cams 3, 4 which are rotated from a drive shaft 1.
Patent GB-303376-A (GB)
Title: Improvements in trucks for use in quenching coke
IPC: C10B39/14
Filed: 1928-12-31
Abstract: 303,376. Otto & Co. Ges., C. Dec. 29, 1927, [Convention date]. Discharging; cooling discharged d materials. - The bottom of a cokequenching truck is formed of a fixed part i inclined at an angle less than the angle of repose of the coke and a pivoted part h which is normally horizontal but may be turned down to form an extension of the part i, thus permitting discharge of the coke through the aperture o<1>.
Patent GB-1481094-A (GB)
Title: Method and apparatus for plucking fibre tufts from a fibre bale
IPC: D01G7/00
Filed: 1974-09-04
Abstract: 1481094 Supplying fiber bales to bale pluckers TOYODA JIDOSHOKKI SEISAKUSHO KK 4 Sept 1974 [8 Sept 1973 (2)] 38609/74 Heading DIN In a method of plucking fibers from a bale B wherein the bale is retained in a frame 11 which is reciprocated by a pair of conveyers 1 and 2 over a plucking roller 3 on exhaustion of the bale the frame 11 is displaced beyond the normal limit of reciprocation to a waiting position at which a fresh fiber bale is inserted and then reciprocation is recommenced. The fiber bale is pressed downwards by a loading plate 22 and limit switches adjacent conveyer 1 are operated by plate 22 at its lowest position to indicate exhaustion of the bale. At the waiting position doors 11c on the frame, are opened by means of a roller 19 on an arm of each door which engages a cranked track alongside the conveyers, Fig. 4. A fresh bale on an auxiliary conveyer 8 is fed into the frame on its arrival at the waiting position as detected by a limit switch 40 which also stops the conveyer 2 and elevates the loading plate 22 by means of a motor 33. The interconnection of the various limit switches and motors is described in association with the circuit diagram in Fig. 8 (not shown).
Patent GB-852644-A (GB)
Title: Improvements in and relating to nuclear reactor fuel elements
Inventor: BOWDEN ANDREW THOMAS
IPC: G21C3/10
Filed: 1957-12-12
Abstract: 852,644. Nuclear fuel elements. PARSONS & CO. Ltd., C. A. Oct. 30, 1958 [Dec. 12, 1957], No. 38628/57. Class 39(4). A nuclear fuel element has a sheath 1 with projecting ends. Into the ends are fitted closure members 3 which have one part 5 with a smaller cross section than the rest. The sheath is pressed on to this part., and welded at the end 4. When the element is lifted by a boss 8 the shoulder formed takes some of the weight of the element. Thermal insulation such as mica is provided at 9.
Patent GB-1530347-A (GB)
Title: Transducers
IPC: G10K11/02
Filed: 1976-09-17
Abstract: 1530347 Transducers SIEMENS AG 17 Sept 1976 [17 Sept 1975] 38702/76 Heading H4J A transducer comprises an oscillator (e.g. piezoelectric or magnetostrictive) element arranged to drive a layer to which is secured an annular loading element, the thickness of the layer being equal to a quarter of the wavelength in the material of the layer corresponding to the resonant frequency of the oscillator element or an odd multiple thereof. In the echo sounder described an aluminium loading ring 3 produces an annular node in the layer 2 which is formed by cementing together with polystyrene or epoxy lacquer hollow silicon dioxide beads. This results in the production of a narrow (ultrasonic) beam of flare angle about 5 degrees.
Patent GB-898474-A (GB)
Title: Process for the production of sulfur
IPC: C10K1/18
Filed: 1959-11-16
Abstract: Hydrogen sulphide and sulphur dioxide are interacted to produce sulphur in the presence of a two-phase system comprising water and a water-immiscible hydrocarbon, preferably having a boiling point of 190 DEG -315 DEG C.  The reaction may be effected at a temperature of 24 DEG -121 DEG C. and a pressure of 0-340 atms.  Hydrocarbons specified are benzene, toluene, xylene, and ethylbenzene; styrene and allylbenzene; cyclopentene, cyclopentadiene, cyclohexane, and cyclohexadiene; cyclopentane, cycloheptane, methylcyclopentane and methylcyclohexane; and hexane, heptane, octane, nonane, decane, undecane and dodecane.  The hydrocarbon may be in the form of kerosene, cracked heavy gasoline, straight run heavy gasoline, and heavy reformed gasoline.  The hydrogen sulphide may be in the form of refinery or natural gas.  The sulphur dioxide may be produced in a cyclic process by burning a portion of the recovered sulphur with air.  In the cyclic process described hydrogen sulphide-containing gas is passed upwards in countercurrent to water, lean solvent, and solvent containing sulphur dioxide, the solvent and a portion of the water and product sulphur being recycled.
Patent GB-1268644-A (GB)
Title: Improvements in or relating to electric circuits for detecting signals simultaneously in chosen amplitude ranges
Inventor: BROWN BRIAN HILTON
IPC: A61B5/024
Filed: 1968-08-13
Abstract: 1,268,644. Amplitude selective circuits; cathode-ray tube displays. NATIONAL RESEARCH DEVELOPMENT CORP. 7 Aug., 1969 [13 Aug., 1968], No. 38727/68. Headings H3T and H4T. [Also in Divisions G1 and G4] A circuit for detecting whether two signals A, B (Fig. 1) are simultaneously within respective given ranges comprises respective detectors PAG1 and PAG2 which produce an output if the signals are within the ranges and a gate A6 which detects simultaneous presence of the outputs of the detectors. The two signals may be co-ordinate values derived from electrodes associated with the heart or muscles. It is explained that if the two signals are used to produce respectively X and Y deflections, different overlapping patterns are produced by normal and ectopic heart beats, by maternal and foetus heart beats and by different ones of a group of muscles (Figs. 3 and 4, not shown). The circuit according to the invention can produce a signal when the co-ordinates are in selected regions, i.e. SA1, SA2, Fig. 4 and this may be used to brighten the trace in an area unique to one of the heart or muscle signals, thus to enable separate counts to be made of the respective ones of the heart signals or to control respective artificial limbs according to the different muscle signals. The circuit can also be arranged to display the signal before the selected area is reached by using the output to open a gate in a signal delay circuit (Fig. 7, not shown). In addition a series of detectors biased by an increasing amount to span the whole of each signal range may be arranged in a matrix so that an output is obtained on a line associated with each area and these outputs may be stored in a shift register. It is also stated that the selected area may be displayed using a double beam tube or two signals of constant amplitude but of different frequency to describe rotating Lissajou figures sweeping out the search area. In Fig. 5, the A and B signals are each fed to a pair of integrated circuit differential comparators CM1, CM2 and CM3, CM4 to give an indication if the signals are within the range and these are applied to an AND gate VT1 followed by an amplifier. The gate transistor is used in an inverted mode to give positive output signals for both positive and negative input signals.
Patent GB-1480236-A (GB)
Title: Infrared radiation source
IPC: H05B3/00
Filed: 1974-09-05
Abstract: 1480236 Infra-red source HEWLETTPACKARD CO 5 Sept 1974 [9 Oct 1973] 38849/74 Heading H5H An infra-red radiation source comprises a resistive film 13 of emissivity greater than 0À5 between a pair of electrodes 15 of emissivity less than 0À2 on a substrate 11, and leads 19 connected to the electrodes. Film 13 is made of Cr 3 Si and the substrate 11 is made from sapphire, Y 2 O 3  or quartz. Platinum or gold which have relatively low emissivities are used for electrodes 15 which have small regions 17 overlying the resistive film 13. Leads 19 are of gold. A metal layer 21 presents emission of spurious radiation from the underside of the source. The resistive film 13 may be covered by an antireflecting layer of TiO 2  to increase the effective emissivity of the source. The refractive index of the antireflecting layer is approximately equal to the square root of the refractive index of the film 13. In Fig. 3 (not shown) the infra-red source is mounted in a housing with its emissive film surface 13 facing towards an elliptical or parabolic mirror formed by an aluminium block. Metal terminal posts extend through the aluminium block and are connected to the leads 19 of the source. The mirror reflects radiation from the source to produce a magnified image. Inert gas, e.g. nitrogen preferably fills the housing.
Patent GB-1139338-A (GB)
Title: Substituted phenyl carbamates
IPC: A01N47/22
Filed: 1966-08-31
Abstract: 1,139,338. Substituted phenyl carbonates. STAUFFER CHEMICAL CO. 31 Aug., 1966 [1 Sept., 1965], No. 38884/66. Heading C2C. [Also in Division A5] The invention comprises compounds of formula in which R 1  is H or C 1 -C 5  alkyl, R 2  is C 2 -C 8  alkyl, C 2- C 4  alkenyl, cyclohexyl, or phenyl which may be substituted by C 1 -C 4  alkyl or alkoxy, nitro or halogen and R 3  is C 1 -C 5  alkyl. The compounds of the above formula in which R 1  is H may be prepared by reacting the appropriate m-alkamido phenol with an alkyl isocyanate. Compounds in which R 1  is other than hydrogen may be prepared by known methods.
Patent GB-936499-A (GB)
Title: Improvements in the construction of transformer bobbins
IPC: H01F5/02
Filed: 1960-11-14
Abstract: 936,499. Bobbins. C. T. W. HEADING. Nov. 14, 1960, No. 39033/60. Class 120 (3). A transformer or like bobbin comprises a rectangular cross-section tube 1 having a rectangular-apertured cheek plate 2 at each end mounted thereon, each plate 2 being a push fit over the tube end and being held in line with inset edges 4 by edges 7 of the aperture 3 interlocked with recesses 5 or 6. In one embodiment, Figs. 1 and 2, tongues 8 engage slots 5 in the tube 1. In a modification, Fig. 4, the edges 7 which may be curved snap into grooves 6 as the cheeks 2 are pushed into position. The bobbin is made of insulating material, e.g. treated paper, fibre, synthetic plastic or a combination of these materials. A paper tube 1 may be made by winding paper strip around a mandrel and treating it before or after winding with wax. If the bobbin is made of synthetic plastic the tube 1 and cheeks 2 may be moulded and the cheeks are heated to enable them to be positioned on the tube and they are then cooled. Specification 646,957 is referred to.
Patent GB-1379860-A (GB)
Title: Polyfluoroalkoxyphosphazene homopolymers
IPC: C08G79/00
Filed: 1973-08-17
Abstract: 1379860 Poly - (fluoroalkoxyphosphazene)- polymers HORIZONS RESEARCH Inc 17 Aug 1973 [28 Aug 1972] 39036/73 Heading C3R The invention comprises poly-(fluoroalkoxyphosphazene) polymers of formula where n is from 50 to 50,000 and Rf is a perfluoroalkyl radical which may be linear or branched and which contains from 3 to 11 carbon atoms. The polymers are obtained by reacting RfCH 2 OM, where M is an alkali metal, with a poly-(dichlorophosphazene) polymer, in a solvent. Examples are given. Uses.-Films and coatings.
Patent GB-835166-A (GB)
Title: Improvements in seat bed
IPC: A47C17/16
Filed: 1957-12-16
Abstract: 835,166. Bed chairs. BEBRY BEDDING CORPORATION. Dec. 16, 1957 [April 24, 1957], No. 39082/57. Class 52(2) In a bed chair with a three section folding mattress frame the sections 17, 18 form the seat back and the section 19 the seat, the outer end of the latter being supported, when erected as a bed, by pivoted legs 46 which, when the section 19 is lifted to convert the bed into a chair, are automatically collapsed by links 50 pivotally connected by a link 53 to the sections 18, 17 and by a link 56 to the chair base 10.
Patent GB-1157906-A (GB)
Title: Monoazo Dyes containing a Tetrahydroquinoline Vinylsulphone Grouping
Inventor: DALE JOHN IRVIN III
IPC: C09B62/51
Filed: 1966-09-02
Abstract: 1,157,906. Water-insoluble monoazo dyes. EASTMAN KODAK CO. 2 Sept., 1966 [4 Oct., 1965], No. 39277/66. Addition to 1,155,318. Heading C4P. The invention comprises water-insoluble (i.e. free from acidic groups such as SO 3 H and COOH) monoazo compounds of general formula wherein R is a carbocyclic aromatic group, e.g. optionally substituted phenyl, R 2 , R 3 , R 4  and R 5  are H or alkyl and Y n _ 1  represents substituents in the 5-, 7- or 8-position of the tetrahydroquinoline nucleus and n is 1, 2, 3 or 4. Examples of Y are alkyl, alkoxy, halogen or acetamido. They are prepared by coupling a diazotized amine RNH 2  to an appropriate coupling comdonent. They are used to dye polyesters, cellulose acetate, polyamides and acrylic polymers in yellow, orange and red shades.